Cheap Flights from Adelaide (ADL) to Seattle (SEA)

View AU$1,190 flight on Tue, 10 Jun. 2025Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Adelaide (ADL) to Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air New Zealand
Mon., 9 Jun. - Fri., 4 Jul.
ADL
Adelaide
SEA
Seattle
AU$1,663 Return, found 7 hours ago
AU$1,663
Return
found 7 hours ago
Select Air New Zealand flight, departing Mon., 9 Jun. from Adelaide to Seattle, returning Fri., 4 Jul., priced at AU$1,663 found 7 hours ago
Air New Zealand
Mon., 9 Jun. - Fri., 4 Jul.
ADL
Adelaide
SEA
Seattle
AU$1,807 Return, found 7 hours ago
AU$1,807
Return
found 7 hours ago
Select Air New Zealand flight, departing Mon., 9 Jun. from Adelaide to Seattle, returning Fri., 4 Jul., priced at AU$1,807 found 7 hours ago
Virgin Australia
Thu., 7 Aug. - Tue., 16 Sep.
ADL
Adelaide
SEA
Seattle
AU$1,926 Return, found 5 days ago
AU$1,926
Return
found 5 days ago
Select Virgin Australia flight, departing Thu., 7 Aug. from Adelaide to Seattle, returning Tue., 16 Sep., priced at AU$1,926 found 5 days ago
Singapore Airlines
Fri., 17 Oct. - Fri., 31 Oct.
ADL
Adelaide
SEA
Seattle
AU$1,931 Return, found 9 hours ago
AU$1,931
Return
found 9 hours ago
Select Singapore Airlines flight, departing Fri., 17 Oct. from Adelaide to Seattle, returning Fri., 31 Oct., priced at AU$1,931 found 9 hours ago
Virgin Australia
Thu., 7 Aug. - Mon., 15 Sep.
ADL
Adelaide
SEA
Seattle
AU$1,935 Return, found 5 days ago
AU$1,935
Return
found 5 days ago
Select Virgin Australia flight, departing Thu., 7 Aug. from Adelaide to Seattle, returning Mon., 15 Sep., priced at AU$1,935 found 5 days ago
Air New Zealand
Mon., 9 Jun. - Fri., 4 Jul.
ADL
Adelaide
SEA
Seattle
AU$1,950 Return, found 7 hours ago
AU$1,950
Return
found 7 hours ago
Select Air New Zealand flight, departing Mon., 9 Jun. from Adelaide to Seattle, returning Fri., 4 Jul., priced at AU$1,950 found 7 hours ago
Air New Zealand
Fri., 17 Oct. - Fri., 31 Oct.
ADL
Adelaide
SEA
Seattle
AU$1,968 Return, found 9 hours ago
AU$1,968
Return
found 9 hours ago
Select Air New Zealand flight, departing Fri., 17 Oct. from Adelaide to Seattle, returning Fri., 31 Oct., priced at AU$1,968 found 9 hours ago
Air Canada
Sun., 10 Aug. - Mon., 15 Sep.
ADL
Adelaide
SEA
Seattle
AU$1,993 Return, found 5 days ago
AU$1,993
Return
found 5 days ago
Select Air Canada flight, departing Sun., 10 Aug. from Adelaide to Seattle, returning Mon., 15 Sep., priced at AU$1,993 found 5 days ago
Virgin Australia
Thu., 7 Aug. - Wed., 17 Sep.
ADL
Adelaide
SEA
Seattle
AU$2,002 Return, found 5 days ago
AU$2,002
Return
found 5 days ago
Select Virgin Australia flight, departing Thu., 7 Aug. from Adelaide to Seattle, returning Wed., 17 Sep., priced at AU$2,002 found 5 days ago
Jetstar
Mon., 2 Jun. - Wed., 25 Jun.
ADL
Adelaide
SEA
Seattle
AU$2,036 Return, just found
AU$2,036
Return
just found
Select Jetstar flight, departing Mon., 2 Jun. from Adelaide to Seattle, returning Wed., 25 Jun., priced at AU$2,036 just found
Flight from Adelaide to Seattle route information
Origin airport
Adelaide
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air New Zealand, All Nippon Airways, American Airlines, Emirates, Qantas Airways, Qatar Airways, Singapore Airlines, United, Virgin Australia
Return price
AU$1,662
Distance
13340 km

Your quick guide to flights from Adelaide to Seattle

Pick up great flights from Adelaide to Seattle

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Adelaide to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Adelaide to Seattle that take around hours.

Find cheap flights from Adelaide to Seattle

From the great flight deals with prices currently ranging from AU$1,663 to AU$2,036, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Adelaide to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in June.

Reasons to book your flight from Adelaide to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Adelaide to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Adelaide Airport (ADL) to Seattle - Tacoma Intl. Airport (SEA)?
The lowest price advertised for a round-trip flight between Adelaide Airport (ADL) and SEA is AU$1,663. But you better get a move on. This figure is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ADL to SEA?
This can vary between air carriers, as each one has its own set of terms and conditions. Head to the Customer Service Portal, where you’ll find easy instructions on how to cancel online.
How do I find cheap flights from ADL to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for ADL to SEA flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Adelaide Airport to Sea-Tac Airport?
With around 13 400 kilometres separating Adelaide and SeaTac, your flight will be a long one. Pack wisely and make your time on board more comfortable. Simple things like warm clothing and a quality travel pillow can make a big difference.
Which airlines fly direct from Adelaide Airport (ADL) to SEA?
Direct flights aren’t available, so you’ll have to make at least one stop between ADL and Seattle - Tacoma Intl. Airport (SEA). Use the layover time to stretch your legs and freshen up.
Are ADL to SEA flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from ADL to SEA can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out! If you’d prefer to play it safe and start your travel planning early, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines release their prices that far in advance. Our suggestion? Check back often as prices are updated regularly.

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